Demonstration device



Aug. 10, 1943. E. G. BARTON DEMONSTRATION DEVICE Filed Nov. 2, 1942 E, QCBQWZOW/ I N VEN TOR.

Patented Aug. 10, 1943 UNlTED STATES PATENT OFFICE DEMONSTRATION. DEVICE Edward G. Barton, Cleveland, Ohio Application November 2, 1942, Serial No. 464,221 1 Claim. (01. 35-19) This invention relates to a demonstrator for use in demonstrating the insulating values of materials. While it is intended primarily for the purpose of proving to prospective customers, the value of house insulation, it can also be employed for th purpose of clearly determining the relative values of different kinds of insulating materials.

A further object is to provide a structure which is simple and inexpensive and canbe operated readily and in such a way as to clearly present the facts to a prospective customer.

With the foregoing and. other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the Figure 1 is a perspective view of the device which, in the present instance, has been constructed in the form of a house.

Figure 2 is a vertical transverse section therethrough.

Figure 3 is a horizontal section.

Referring to the figures by characters of reference, I designates the base or floor which can be constructed of wood or other material and erected on this base is aninner wall 2 and an outer wall 3, the two walls being spaced apart. A partition 4 is extended between the walls at the center of the top of. the structure and throughout the length thereof and this partition can be extended upwardly from the top of the casing to form a handle 5 by which the entire device can be transported readily. The top of the structure can be formed of panels 6 representing roof sections, these panels being hingedly connected to the partition 4 as shown at i so that they can readily'be raised for the purpose of inspecting the area between the inner and outer walls. On each of these top panels is located a thermometer 8 which, because of its intimate, contact with the top or roof panels, will clearly indi-v cate any heat radiation through the panels.

A heating unit 9 is located on the base I adjacent to the center thereof. This can be in the form of a small lamp or the like. A cord l0 leading to the unit is extended through an opening .II in one of the walls of the structure and is adapted to be plugged into an outlet forming a part of a lighting system.

Should it be desired to demonstrate by means of this device the value of a particular kind of insulating material, thespace between the inner and outer walls atone side of the partition is filled with that particular insulating material which in the present case has been indicated at l2. The space between the walls at the other side of partition 4 is left without. any insulation. By directing current to the heating unit 9, it can be determined easily, by referring to th two thermometers 8 and comparing them, whether or not the insulating material is advantageous.

By placing other insulating means in one side of the structure, a comparison between th two insulating mediums can be made easily by reading the two thermometers.

It has been found in practice that a device of this type, which can be easily carried and operated, is invaluable as a means for convincing prospectiv customers that insulating material will result in saving of heat in house structures.

It is to be understood of course that other types of structures to be tested with insulation can also be used and it is intended to design the housing so as to have the same general appearance as the particular structure th insulation of which is under consideration.

What is claimed is:

A device for demonstrating the insulating value of different materials including walls cooperating to provide an inner casing, a base on which the inner casing is erected and to which it is connected, a partition having an integral portion connected to and extending upwardly from the inner casing at the top thereof constituting a handle, walls connected to and extending upwardly from the base and spaced throughout from the walls of the inner casing to provide an outercasing, closures hingedly connected to the handle portion and normally bearing on the walls of the outer casing said closures simulating a roof, an insulating material between the inner and outer casings at one side thereof, a heating element within the inner casing, and heat-indieating means on the closures at the two sides of the handle portion and above the insulated and r the non-insulated portions of the device.

- EDWARD G. BARTON. 

